Conrad Hailstone – insurance company owner who Fred works for in one episode

Cousin Tumbleweed – owns a ranch

Darrin Stephens – one time neighbor of Flintstones

Dash Rip Rock – detective in charge with spying on Fred to see if he was fooling around (this could be wrong; there is strong evidence to support Dash was Elly Mae's movie star suitor on the Beverly Hillbillies and not on the Flintstones)

Detective Shale

Dino – Flintstone's pet dinosaur who barks like a dog, whose species is Snorkasaurus